412 CHAPTER 16 / ' * 1952 Guide The clay-lined brick chimney is the most commonly used chimney, but recently other building materials have been used for reasons of economy or convenience.

532 CHAPTER 22 1952 Guide in factory buildings.

844 CHAPTER 38 1952 Guide reducing the house temperature 6 to 10 deg from about 10:00 pan. to 5:30 a.m.* In locating a room thermostat the following rules should be observed: 1.

854 CHAPTER 38 1952 Guide the sphere and the thermostat-operated switch, is also used for controlling room conditions. .

970 CHAPTER 46 1952 Guide f- Fiber saturation point is the moisture content of cellular materials (wood, etc.) at which the cell walls are completely saturated while the cavities are liquid-free.

1032 CHAPTER 48 1952 Guide -fitting may be installed in the transmitting circuit to prevent over-heating of' the., service water.

70 CHAPTER 4 1953 Guide where JVeu =' Reynolds number

426 Chapter 17 = . .. . 1953 Guide In!

512 CHAPTER 21 1953 Guide.

704 CHAPTER 32 : 1953 Guide locities. , Balancing is- obtained by-use of- dampers.

812 CHAPTER 37 oni a*vn&s b3d soNnod - 3nss3bd nmosov. 1953 Guide HDM 3HvndS 3d SONftOd - 3nsS3Hd 3i/no$SV of refrigerant which is present in vapor form.

1040 .

Heating Ventilating , Air Conditioning Guide 1954 Tables (continued) Ian outlet velocity, 746 fan speed, 746 fitting allowance, 445, 470, 497 fitting dimensions, 616-622 fixture flow, 1068 fixture units, 1068 flammability of piy* and vapore, 162 flanged fittings surface, 627 flue gas_dewpoint, 355 free convection, 94 friction loss, pipe, 378, 494, 498, 503, 526, 528, 1074 friction valves and fittings, 456, 497, fuel combustion, 348 fuel consumption, 444, 445 fuel oil properties, 332 fumes, concentration, 160 gas analysis, 338 gas piping capacity, 379 gaseous fuel properties, 338 glass absorptance, 288 glass transmittance, 288 graphical symbols, 17 beat absorbed, cooling water, 791 heat conductance, 93,101, 170- 175 beat consumption record, 447 heat equivalents, 259 beat flow walls and roofs, 187-197, 280-284 heat gain appliances, 306 coil heat emission, 544 glass, 291-293 glass blocks, 294-296 insulated cold pipes, 636 beat loss bare copper pipe, 626 bare steel pipe, 544, 626 basement, 252 floor, 254 pipe coils, 544 radiation, 96 residence, 261, 262 room, 563 beat pump, 842 beat transmission coefficients, 187 building construction, 187- 197, 284 doors, 197 glass, 197 roofs, 193-ig7, 284 walls, 187 water heaters, 1084 hot water demand, 1077, 1078, 1080 hot water pipe sizes, 525- 628, 1070-1072 humidities, industrial air conditioning, 978-988 hygroscopic materials, 990 incident angle, 276 inertial separator, 766 infiltration through outside doors, 222 infiltration through walls, 218 infiltration through windows, 220 inflammability, gases, 162 inside temperatures, 248, 266 inside temperatures, 247, 2, 978, 1061 iinitAntiinflfmn Bplar heat gain, 291-296 insulation conductivity, 628 insulation factors, 628 insulation thickness, 636, 637 insulation to prevent freezing, 637 insulation, underground, 639 intake velocity, 692 iron elbow equivalents, 525 life of equipment, 970 limits for contaminants, 163 load factors, 450 maintenance cost, 972 Tables (continued) maximum allowable concen trations dust, fumes, mists, 160 dusts, 160,161 flammable gases, 158 gases, 158 vapors, 158 metal gages for ducts, 724, 1015 meter performance, 1074 minimum outdoor air require- _ ments to remove odors, 113 moisture content for mate rials, 990 moisture regain, 990 moisture transfer, 208 motor classification, 892 motor current, 893 motor design limits, 890 motif drive applications, 896 motor horsepower, 890 motor ratings, 898 motor speed range, 890 motor voltage, 890 noise levels, 909 oil fuel specifications, 332 oil heat value, 334 operating conditions, 85S operating cost, 968, 971,972 operating hours, 973 orifice capacities, 492, 529 outdoor air requirement, 113 outlet velocities, 746 outside temperature, 241, 269, 442 owning and operating cost, 971 particle size, 153,154 particulate matter, size, 153 permeability to vapor, 208 physiological response to heat, 117 pipe capacity, 379, 494, 498, 500-504, 526, 528, 1076 pipe covering factors, 628 pipe dimensions, 606-609 pipe expansion, 610 pipe fitting dimensions. 616-- 621 pipe freezing prevention, 637 pipe insulation, 637 pipe rectangular equivalents, 460 pipe roughness, 73 pipe surface, 627 pipe volume, 539 pressure loss ducts, 478 elbows, 525 fittingB, 497, 525 refrigerant line, 854, 855 registers, 475, 476 return intake, 692 properties of ir M 346 827 fuel oil, 332 gaseous fuels, 338 moist air, 32 monochlorodifluaro- methane, 829 monofluorotrich loromethane, 830 steam, 49 water, 40 radiation, black body, 96 radiation factors, 95 radiation problem solution, 97 radiator heat loss correction factors, 546 radiator sizes, 542, 543, radiator water content, 539 rating air conditioning units, rating steel boilers, 388 ratio of specific heats, 73 refrigerant properties, 827, 829,830 refrigerant line capacity, 854, 855, 858 Tables (continued) refrigeration equipment selec tion, 858 regain of hygroscopic mate rials, 990 requirements for fuel oil, 332 return pipe capacities, 500,503 room temperature differential, 249 screen mesh, 154 shading effect, 299 sheet metal gages for ducts, 724, 1015 ship design conditions, 1061 slime control, 955 slime formers, 947 smoke chart numbers, 1116 snowfall data, 568 snow melting systems, 569 sodium dichromate, 958 soil conductivity, 176 sol-air temperature, 279 solar altitude, 275, 277 solar azimuth, 277 solar declination, 278 solar heater design, 1089 solar heat gain, 280, 282-283, 291 solar radiation, 275 sound attenuation, 913-915, 917,918 sound level, 909, 910 sound pressures and in tensities, 907 specific gravity factors, 379 specific beat of compressible fluids, 73 specific heat ratio, 73 spray pond design data, 783 steady-state conduction prob lems, 101 steam consumption of build ings, 446 steam conversion factors, 548 steam pipe capacities, 494, 496-503 steam table, 49 steel boiler ratings, 388, 389 summer climatic conditions, 269 summer design conditions, 266,269 surface conductance, 93. 170 temperature differential, 249, 280, 282 temperature, industrial air conditioning, 978-988 temperature, inside, 248, 266, 978-988 temperature limit for men, 118 temperature range, 268 temperature, summer, 269 temperature, winter, 241 thermal conduction problems, 107, 113 thermal conductivity, 91, 628 thermal convection conduct ance, 93 thermodynamic properties moist air, 32 water, 40 transmittance, glass, 288, 291 unit conditioner rating, 599 unit fuel consumption, 444, 445 unit heater capacity factors, 579 unit ventilator capacities, 587 upper temperature limits, US vanes in elbows, 709 vapor transfer, 207 velocity, return intake, 692 ventilation standards, 273 warm air ducts, 454, 455, 458 warm air fittings, 456 warming-up allowance, 393 water analyses, 946, 947, 948, 965 water cooling effectiveness, 791 water fixture flow, 1068 water main temperatures, 776 Index to Technical Data Section Tables (ConiinW) water meter performance, 174 water pipe capacities, 526, water requirements, lu< *, iu<o. 1080 weight of air, 32 weights of ducts, 725--726 wet collectors, 767 winter climatic conditions, 24i winter design temperatures, 241 Tank, tanks expansion, 536-640 Tax, pipe, 393 Temperature, temperatures absolute, 9, 30 attic, 250 automatic control, 871, o<4 basement, 253 control for railway passenger car, 1054 _ control service water, 1085 design wet-bulb, 789 dew-point, 26 dry-bulb, 9 drying, 960, 1038 effective, 9 ground, 252, 253 hazard, 117 industrial, 977 inside, 248, 266, 1061 ceilings, high, 248 proper level, 248 mean radiant, 120, 560 measurement, 1099 pyrometers, 1102 thermocouple, 1100 thermometers, 1099 outside, 241, 269 surface, 405, 1102 thermodynamic wet-bulb, zo unheated spaces, 252 water main, 776 wet-bulb, 9 Terminology. \__ Test methods, 1099, U19 Testing codes, 1U9 Therapy cold, 143 fever, 142 oxygen, 145 Thermal conductance, 167,170,181 conduction equation, 90 conductivity, 90, 168 convection, 89, 91 convection equation, 91 expansion of pipe, 610 integrator, 1114 interchanges of body, 113 radiation equation, 92 resistance, 8, 167, 170, 180 resistivity, 8,170 steady-state conduction prob lems, 101 transmittance, 255 unit conductances for convec tion, 93 Thermocouples, 1100 Thermodynamics. 23 _air and water mixture, 25, 29, laws3.2of. 9, 23 wet-bulb temperature, 26 Thermometers, 1099 alcohol, 1099 dry-bulb, 1099 globe, 549, 1114 Kata, 549, 1110 mercurial, 1099 resistance. 1103 stem correction, 1099 wet-bulb, 1111 Thermostat, 9, 872 room. 876 Time lag through walls and roofs, 300, 657 Ton of refrigeration, 8 Total heat, 5 Total pressure, 7 Tower, towers, 780 cooling, design, 790 cooling, performance, 792 rrw^hanicftl draft, 785 natural draft, 783 selection, 795 spray cooling, 783 Transmission heat losses, 252-256 solar heat, 284, 287 Transmittance, thermal, 9 Transportation air conditioning, 1051 temperature and humidity control, 1054, 1055, 1057, 1064 Trap, traps, 512 alternating receiver, 516 automatic return, 487, 516 bucket, 514 float, 512 impulse, 515 installation, 516 steam, 512 thermostatic, 513 tilting, 515 Traveling-grate stoker, 359, 361 Treatment of disease, 131,137 Tropical air cooling, 136 Tube radiator, 7 Tunnel dryer, 1044 Tunnels, pipe, 645 Turning vane, 673, 677, 695, 697 Two-pipe system, 10, 484, 528 u Ultra-violet light. 113,132,156 Underfeed stoker, 358 Underground pipe insulation, 639 41 Unheated space temperatures, 252 Unit, units air cleaners, 751, 764 air conditioners, 591 application, 598 cooling, 601 dehumidifying, 596 humidifying, 595 ratings, 599 remote units, 596 sound isolation, 595 types of, 591 air coolers, 591, 601 defrosting, 602 design, 601 performance, 601 ratings, 602 types of, 591 air niters, 751 British thermal, 2 Hhnmiriifiitifln, 596 direct-indirect heating, 3 fuel consumption, 433 heaters, 575 application, 577 automatic control, 580 boiler capacity, 584capacity factors, 579, 584 classification, 575 control, 580, 878 direct-fired, 368, 575 electric, 578 maintenance, 583 outlet velocity, 577 piping connections, 581 ratings, 578 temperatures, 561, 562, 580 types of, 575 xxiii Unit, Units (continued) humidifiers, 780 types, of, 780 induction, 660, 661 noise measurement, 905 systems, 575 ventilators, 584 air exhaust vents, 589 applications, 587 capacity, 587 control, 588, 855 location, 588 ratings, 585 selection, 588 window, 589 Unitary equipment, 575 definitions, 575 V Vacuum cooling units, 837 heating pumps, 510 control, 511 piston displacement, 511 heating system, 10, 481 down-feed, 486, 488 unit-heater connection, 581 Valve, valves. 520, 621,601,621 automatic, 623 check, 623 control, 521 expansion, 851 gate, 622 globe, 622 reducing pressure, 506 relief, 540 Vane, vanes, 668, 681, 682, 709 Vaned outlets, 681, 682 Vapor, vapors, 151 adsorption, 769 barrier, 211 heating systems, 10, 486 unit beater connection, 581 pressure, 7 transmission, 204 Vaporizing oil burner, 367 Velocity, 10 capture, 982 coil, 595, 601, 808, 809 conveying, 1006, 1014 duct, 714,1006 exhaust intakes, 692, 1004, 10

102 CHAPTER 5 1954 Guide Rt, and into the water stream through the convection resistance, Rt.

172 CHAPTER 9 1954 Guide k2Table : Conductivities ( ) and Conductances (C) of Building and Insulating Materials--Contmued ` These constants are expressed in Btu per (hour) (square foot) (Fahrenheit degree temperature difference).